Display a web scene

Learn how to create and display a scene from a web scene stored in ArcGIS.

This tutorial shows you how to create and display a scene from a web scene. All web scenes are stored in ArcGIS with a unique item ID. You will access an existing web scene by item ID and display its layers. The web scene contains feature layers for the Santa Monica Mountains in California.

Prerequisites

Steps

Open a Java project

1. To start the tutorial, complete the Display a scene tutorial, or download and unzip the Display a scene solution into a new folder.

2. Open the build.gradle file as a project in IntelliJ IDEA.

3. If you downloaded the solution, get an access token and set the API key.

   Instructions to set the API Key

   An API Key gives your app access to secure resources used in this tutorial.

   1. Go to the Create an API key tutorial to obtain a new API key access token. Ensure that the following privilege is enabled: Location services > Basemaps > Basemap styles service. Copy the access token as it will be used in the next step.

   2. In the IntelliJ IDEA > Project tool window, open src/main/java/com.example.app and double-click App.

   3. In the start() method, set the API key property on the ArcGISRuntimeEnvironment with your access token. Replace YOUR_ACCESS_TOKEN with your copied access token. Be sure to surround your access token with double quotes as it is a string.

      App.java

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          ArcGISRuntimeEnvironment.setApiKey("YOUR_ACCESS_TOKEN");
      

Prepare files before coding the app

Modify the files from the Display a scene tutorial so that they can be used in this tutorial: you will add imports, change the application title, and remove unnecessary code.

1. In the IntelliJ IDEA > Project tool window, open src/main/java/com.example.app and then click App. Add the following imports, replacing those from the Display a scene tutorial.

   App.java

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   package com.example.app;
   
   import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
   import com.esri.arcgisruntime.mapping.ArcGISScene;
   import com.esri.arcgisruntime.mapping.view.SceneView;
   import com.esri.arcgisruntime.portal.Portal;
   import com.esri.arcgisruntime.portal.PortalItem;
   
   import javafx.application.Application;
   import javafx.scene.Scene;
   import javafx.scene.layout.StackPane;
   import javafx.stage.Stage;
   
   public class App extends Application {
   

2. In the start() lifecycle method, change the title that will appear on the application window to Display a web scene tutorial.

   App.java

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     @Override
     public void start(Stage stage) {
   
       // set the title and size of the stage and show it
       stage.setTitle("Display a web scene tutorial");
   
       stage.setWidth(800);
       stage.setHeight(700);
       stage.show();
   

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3. In start(), delete the code for base surface, surface elevation, camera, and camera viewpoint. The web scene defines these characteristics, so you don't have to set them in your app.

   App.java

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       // create a scene view to display the scene and add it to the stack pane
       sceneView = new SceneView();
       stackPane.getChildren().add(sceneView);
   
       ArcGISScene scene = new ArcGISScene(BasemapStyle.ARCGIS_IMAGERY_STANDARD);
   
       // set the scene on the scene view
       sceneView.setArcGISScene(scene);
   
       // add base surface for elevation data
       Surface surface = new Surface();
       String elevationServiceUrl = "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";
       surface.getElevationSources().add(new ArcGISTiledElevationSource(elevationServiceUrl));
       // add an exaggeration factor to increase the 3D effect of the elevation.
       surface.setElevationExaggeration(2.5f);
   
       scene.setBaseSurface(surface);
   
       Point cameraLocation = new Point(-118.794, 33.909, 5330.0, SpatialReferences.getWgs84());
       Camera camera = new Camera(cameraLocation, 355.0, 72.0, 0.0);
       sceneView.setViewpointCamera(camera);
   

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4. In start(), delete the code that creates an ArcGISScene by passing a basemap. In this tutorial, you will instead pass a portal item.

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       // create a scene view to display the scene and add it to the stack pane
       sceneView = new SceneView();
       stackPane.getChildren().add(sceneView);
   
       ArcGISScene scene = new ArcGISScene(BasemapStyle.ARCGIS_IMAGERY_STANDARD);
   
       // set the scene on the scene view
       sceneView.setArcGISScene(scene);
   
   

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Get the web scene item ID

You can use ArcGIS tools to create and view web scenes. Use the Scene Viewer to identify the web scene item ID. This item ID will be used later in the tutorial.

1. Go to the LA Trails and Parks web scene in the Scene Viewer in ArcGIS Online. This web scene displays trails, trailheads and parks in the Santa Monica Mountains.
2. Make a note of the item ID at the end of the browser's URL. The item ID should be 579f97b2f3b94d4a8e48a5f140a6639b.

Display the web scene

You can display a web scene using the web scene's item ID. Create a scene from the web scene portal item, and display it in your app.

1. In the start() method, create a new Portal referencing ArcGIS Online as the portalUrl parameter and false for the loginRequired parameter.

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       // create a scene view to display the scene and add it to the stack pane
       sceneView = new SceneView();
       stackPane.getChildren().add(sceneView);
   
       // create a scene from a web scene portal item and set it to the scene view
   
       Portal portal = new Portal("http://www.arcgis.com/", false);
   
       // set the scene on the scene view
       sceneView.setArcGISScene(scene);
   

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2. Create a PortalItem for the web scene by passing the portal and the web scene's item ID as parameters.

3. Create an ArcGISScene using the portalItem as the constructor parameter.

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       // create a scene view to display the scene and add it to the stack pane
       sceneView = new SceneView();
       stackPane.getChildren().add(sceneView);
   
       // create a scene from a web scene portal item and set it to the scene view
   
       Portal portal = new Portal("http://www.arcgis.com/", false);
   
       PortalItem portalItem = new PortalItem(portal, "579f97b2f3b94d4a8e48a5f140a6639b");
   
       ArcGISScene scene = new ArcGISScene(portalItem);
   
       // set the scene on the scene view
       sceneView.setArcGISScene(scene);
   

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4. Use the existing code to display the new ArcGISScene on the sceneView with setArcGISScene().

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       // create a scene view to display the scene and add it to the stack pane
       sceneView = new SceneView();
       stackPane.getChildren().add(sceneView);
   
       // create a scene from a web scene portal item and set it to the scene view
   
       Portal portal = new Portal("http://www.arcgis.com/", false);
   
       PortalItem portalItem = new PortalItem(portal, "579f97b2f3b94d4a8e48a5f140a6639b");
   
       ArcGISScene scene = new ArcGISScene(portalItem);
   
       // set the scene on the scene view
       sceneView.setArcGISScene(scene);
   

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5. Run the app. Ensure to run the app as a Gradle task and not as an application in your IDE. In the Gradle tool window, under Tasks > application, click run.

Your app should display the scene that you viewed earlier in the Scene Viewer.

What's Next?

Learn how to use additional API features, ArcGIS location services, and ArcGIS tools in these tutorials:

• Display a web map
• Display a map